Giesemann/ATI T5 lamp comparison - pics, PAR, and a whole mess of data

[gus6464]

I saw mention of the Apogee early on but was not clear if that is what you used for your PAR measurements. I reread it and still didn't notice. At least not to me. Sorry if I'm overlooking the obvious!

They used a Labsphere LMS-3M. An Apogee is not accurate enough for measurements like this, especially when it comes to 420nm actinic bulbs.

 

[jumplittlechloe]

In my personal measurements, there was not a significant difference between it and the Coral Plus.

I ended up going with a giesemann aquapink in the front and and the actinic+ in the back. I tried several combinations of bulbs and this seemed to look the best and bring out some of the reds and purples in my sps. I really wonder about the coral plus though. I like having a brighter bulb in the front and was thinking about going with the coral plus but could not find it in stores around me. I wonder if it would be much brighter? Anyway, good to know that the PAR is similar to Coral Plus.

 

[fewponds]

Any information about Giesemann's performance after six months of operation (comparing to ATI bulbs)?

 

[tony73]

Interesting thread

 

[Bpb]

I would love to see/hear some experiences with the Giesemann tropic 6500k


Sent from my iPhone using Tapatalk

 

[illumnae]

Sorry to revive this old thread, but I was reading the data and thinking back on how giesemann equivalents of ATI bulbs are roughly the same (it was mentioned in this thread too). However, with a 60+ PAR difference between the ATI Blue+ and the Giesemann Actinic Blue, wouldn't someone running an 8 bulb fixture with half blue bulbs experience a significant drop in PAR when switching between the 2?

I was looking to switch to Giesemann in the hope that the increased actinic spectrum in the Actinic Blue would give my corals more pop than the Blue+, but the trade off seems immense.

 

[rtparty]

Sorry to revive this old thread, but I was reading the data and thinking back on how giesemann equivalents of ATI bulbs are roughly the same (it was mentioned in this thread too). However, with a 60+ PAR difference between the ATI Blue+ and the Giesemann Actinic Blue, wouldn't someone running an 8 bulb fixture with half blue bulbs experience a significant drop in PAR when switching between the 2?

I was looking to switch to Giesemann in the hope that the increased actinic spectrum in the Actinic Blue would give my corals more pop than the Blue+, but the trade off seems immense.

Probably not enough of a drop to worry IMO. The numbers wouldn't compound all that much. For example, if you put 2 blue bulbs together the decreased PAR wouldn't equal 120

 

[ksc]

The Gieseman actinic would give off more PUR than a Blue+. Your tank might actually be getting more usable light with the actinic.

 

[jayball]

I was looking up this thread and figured it could do some good to bump it. The pic's are broken but it works if you follow the google doc sheet in the first post.

https://docs.google.com/document/d/1WHuol0uRn2W7Jk-rxYWmtNgUF-lkY_VlUpAiNsMwME4/pub

 

[ReefCowboy]

The Gieseman actinic would give off more PUR than a Blue+. Your tank might actually be getting more usable light with the actinic.

This post....how valid is it?

 

[rtparty]

This post....how valid is it?

Technically, an actinic bulb is nearly 100% usable light. A blue bulb will have some unusable light but very little. I think it is in the 95-97% range.

I feel most people are too afraid to use actinic bulbs when in reality, they shouldn't be.

 

[DiscusHeckel]

If one's aim is coral growth, then blue+ is far better compared to actinic. I use an actinic tube in my 8-tube powermodule and am very happy with it.

 

[ReefCowboy]

Technically, an actinic bulb is nearly 100% usable light. A blue bulb will have some unusable light but very little. I think it is in the 95-97% range.

I feel most people are too afraid to use actinic bulbs when in reality, they shouldn't be.

I like the blue+ although I read from time to time the giesemann super actinic is a bluer bulb without the "greenish tint" blue+ puts out(im not bothered by it, cant really tell its there even).

I do like the ATI actinic bulb and pop but I always read blue+ has the actinics with the advantage of higher par...therefore I wanted to ask from the post.

 

[rtparty]

I like the blue+ although I read from time to time the giesemann super actinic is a bluer bulb without the "greenish tint" blue+ puts out(im not bothered by it, cant really tell its there even).

I do like the ATI actinic bulb and pop but I always read blue+ has the actinics with the advantage of higher par...therefore I wanted to ask from the post.

The ATI Actinic isn't far behind in terms of PAR actually. About 50 points is all. Again, I wouldn't be afraid to use them. I'm putting 2 in Giesemann fixture along with 2 blue plus and the Radium

 

[Brock0019]

Nice article and good information. Thanks for posting it

 

[Haksar]

Great thread.
Has anyone tried iquatics blue plus ? Is it the same as ATI blue plus
in terms of PAR and nm